Hyper draws black background with RGB=(0, 0, 1) once per second

• I am on the latest Hyper.app version
• I have searched the issues of this repo and believe that this is not a duplicate

• OS version and name: macOS 12
• Hyper.app version: 3.2.3 (stable)
• Link of a Gist with the contents of your .hyper.js: https://gist.github.com/andmis/d0f1d9fe8afc6616c1e50be4c2fdbbcb
• Relevant information from devtools (CMD+ALT+I on macOS, CTRL+SHIFT+I elsewhere):
• The issue is reproducible in vanilla Hyper.app: Is Vanilla

Issue

I am using Vanilla Hyper out-of-the-box. The background is black. It appears that approximately once per second, the background is rendered using the RGB color (0, 0, 1) (where 1 means 1/255), which is almost black but not quite.

To reproduce, you can use the program linked in this gist, which polls the color under the mouse cursor and prints the color and a timestamp every time the color under the cursor changes.

I get the following when I hover my mouse over the Hyper background while Hyper is the active app:

last: r=0.000000, g=0.000000, b=0.003922
new:  r=0.000000, g=0.000000, b=0.000000
sec:  777719
last: r=0.000000, g=0.000000, b=0.000000
new:  r=0.000000, g=0.000000, b=0.003922
sec:  777720
last: r=0.000000, g=0.000000, b=0.003922
new:  r=0.000000, g=0.000000, b=0.000000
sec:  777720
last: r=0.000000, g=0.000000, b=0.000000
new:  r=0.000000, g=0.000000, b=0.003922
sec:  777721
last: r=0.000000, g=0.000000, b=0.003922
new:  r=0.000000, g=0.000000, b=0.000000
sec:  777721
last: r=0.000000, g=0.000000, b=0.000000
new:  r=0.000000, g=0.000000, b=0.003922
sec:  777722
last: r=0.000000, g=0.000000, b=0.003922
new:  r=0.000000, g=0.000000, b=0.000000
sec:  777722
last: r=0.000000, g=0.000000, b=0.000000
new:  r=0.000000, g=0.000000, b=0.003922
sec:  777723
last: r=0.000000, g=0.000000, b=0.003922
new:  r=0.000000, g=0.000000, b=0.000000
sec:  777723
...

FWIW, Terminal.app does this as well, but iTerm2, Alacritty, and kitty do not.

No repository file or test is named. Start by reproducing the color polling described in the linked gist on macOS 12 with vanilla Hyper 3.2.3, then trace the periodic background rendering path. Done means the Hyper background remains consistently black without the once-per-second RGB=(0, 0, 1) change.